IPR And High Pressure Pump Test (E-Series or F-Super Duty/Excursion - Late Build)
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
If injection control pressure is still low after ruling out both cylinder heads as the source of injection control pressure leakage, perform the following to isolate the cause.
- Reinstall the left cylinder head Oil High Pressure Leakage Test Adapter 303-1071/2 (solid block-off tool).
- With the high pressure pump effectively deadheaded, crank the engine and monitor the ICP PID.
- If a low pressure condition still exists, the problem is most likely with the high pressure pump or the high pressure drive gear. If the injection control pressure is now within specifications, inspect all components carrying high pressure oil on both engine banks.
- The leak could also be in the discharge tube, branch tube, or stand pipes. Perform the air pressure check if this procedure has not already been completed. If the concern is related to a leaking standpipe, branch tube or discharge tube, this test should identify the leak.